alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT Possible Chrome WebEx Extension RCE Attempt"; flow:to_server,established; http.uri; content:"cwcsf-nativemsg-iframe-43c85c0d-d633-af5e-c056-32dc7efc570b.html"; fast_pattern; http.host; content:!"webex.com"; reference:url,bugs.chromium.org/p/project-zero/issues/detail?id=1096; classtype:attempted-user; sid:2023756; rev:5; metadata:affected_product Google_Chrome, attack_target Client_Endpoint, created_at 2017_01_24, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, tag Web_Client_Attacks, updated_at 2024_02_15;)